Defining Classes
A Visual Basic .NET class isn't a VB6 class. VB6 classes are declared and defined using the interface keyword in Visual Basic .NET. Classes in Visual Basic .NET are user-defined aggregate types that support inheritance and are distinct from COM interfaces, which is exactly what a VB6 class module is.
All classes in Visual Basic .NET are defined in a .VB file (as opposed to a .CLS file), and a .VB file may contain one or more classes. (Source files can mix and match classes, structures, and modules in the same file.) The basic syntax of a class is as follows:
Class classname
End Class
Tip
If you accidentally mistype the declaration of a class, the Visual Studio .NET IDE will use a squiggly underline to indicate the location ...
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